Headed to the movies this weekend? If you see Iron Man 3, you might see some familiar faces. Maj. Erin Karl writes that five members of the 916th Air Refueling Wing from Seymour Johnson Air Force Base, N.C., were selected as extras for the film. A little more than a year ago, the blockbuster film starring Robert Downey Jr. and Gwyneth Paltrow was filmed throughout North Carolina. The casting company made an extra push to use members of the military. Executive officer Maj. Thaddeus Janicki, Security Forces member Master Sgt. William Lester, 567th Red Horse member Master Sgt. Williams Fields,…